17
Technical Information
Service Manual
Function introduction for combination buttons
Combination of "+" and "-" buttons: About Child lock
Press " + " and " - " buttons simultaneously to lock or unlock the 
keypad. If the remote controller is locked,    is displayed. In this 
case, pressing any button,    blinks three times.
Combination of "MODE" and "-" buttons:
About switch between Fahrenheit and centigrade
At unit OFF, press "MODE" and "-" buttons simultaneously
to switch between °C and °F.
Combination of "TEMP" and "CLOCK" buttons:
About Energy-saving Function
Press "TEMP" and "CLOCK" simultaneously in COOL mode to 
start energy-saving function. Nixie tube on the remote controller 
displays "SE". Repeat the operation to quit the function.
Combination of "TEMP" and "CLOCK" buttons:
About 8°C Heating Function
Press " TEMP " and " CLOCK " simultaneously in HEAT mode to 
start 8°C Heating Function. Nixie tube on the remote controller 
displays "   " and a selected temperature of " 8°C " . (46°F if 
Fahrenheit is adopted). Repeat the operation to quit the function.
About Health function (COLD PLASMA)
Turn on the unit, start up the fan (Breezing and X-FAN are 
excluded) and press Health button on remote controller to start 
health function (If there is not Health button on remote controller, 
the unit defaults health function ON. )
If “H1” is displayed on the remote controller while it’s not operated 
by the professional person/after-sales person, it belongs to the 
misoperation. 
Please operate it as below to cancel it.Under the OFF status of 
remote controller, hold the “MODE” button  and “X-FAN” buttons 
simultaneously  for 5s to cancel “H1” display. Sub-Assy
Note:
●  If  remote controller  displays  “H1”,  it  belongs to  the  normal 
function reminder. If the unit is defrosting under heating mode, 
it operates according to H1 defrosting mode. “H1” won’t be 
displayed on the panel of indoor unit;
● Once you set H1 mode, if you turn off unit by remote controller, 
H1 will display 3 times on the remote controller and then 
disappear;
● Also,  when  you set    H1 mode,  when  you  change to  heating 
mode, H1 will display 3 times on the remote controller and then 
disappear.
Replacement of batteries in remote controller
 
1. Press the back side of remote controller marked with"   ", as 
shown in the g, and then push out the cover of battery box along 
the arrow direction.
2. Replace two 7# (AAA 1.5V) dry batteries, and make sure the 
position of "+" polar and "-" polar are correct.
3. Reinstall the cover of battery box.
NOTICE
:
● During operation, point  the remote control signal sender  at the 
receiving window on indoor unit.
●  The  distance  between signal  sender  and  receiving window 
should be no more than 8m, and there should be no obstacles 
between them.
●  Signal may  be  interfered easily in  the  room where  there  is 
uorescent  lamp  or  wireless  telephone;  remote  controller  should 
be close to indoor unit during operation.
● Replace new batteries of the same model when replacement is 
required.
●  When  you  don't  use  remote  controller  for  a  long  time,  please 
take out the batteries.
● If the display on remote controller is fuzzy or there's no display, 
please replace batteries.